1. Adamu CI, Nganje TN, Edet A (2015) Heavy metal contamination and health risk assessment associated with abandoned barite mines in Cross River State, southeastern Nigeria. Environ Nanotech MonitManag 3:10–21
2. Afiukwa JN (2013) Evaluation and correlation study of heavy metals load in drinking water update of water -related disease cases in Ebonyi State from 2001-2011. Am J Sci Ind Res 4:221–225
3. Alam MO, Shaikh WA, Chakraborty S, Avishek K, Bhattacharya T (2015) Ground water arsenic contamination and potential health risk assessment of Gangetic Plains of Jharkhand. India Expo Health 1:125–142
4. ATSDR (2008) Toxicological profile for chromium (draft for public comment). U.S. Department of Health and Human Services, Public Health Service, Atlanta
5. Azizullah A, Muhammad NKK, Peter R, Donat-Peter H (2011) Water pollution in Pakistan and its impact on public health-a review. Environ Int 37:479–497